Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
31-01-2023 20:49
Static task
static1
General
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Target
242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe
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Size
4.1MB
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MD5
3ec06461bc2ac71dab2701ade11fc725
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SHA1
1605219848e21a17b48d9891cb26e260d63389d6
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SHA256
242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6
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SHA512
5ef4d8633033001679ad7770bddd43100172e32f6324fe143d457ae4c5abfe9bc4ac0b9d553d79aa592ffddf3458665167af05e1c19fde2cc83251495253c99f
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SSDEEP
98304:T0y0T34jPqe76AqYiv3nwU59HFBsbXEX7+AZCZV6PW66a:YD32XE3dJFqbXoCD6Pp
Malware Config
Signatures
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Suspicious use of NtCreateUserProcessOtherParentProcess 4 IoCs
Processes:
svchost.exedescription pid process target process PID 4452 created 4724 4452 svchost.exe 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe PID 4452 created 3744 4452 svchost.exe csrss.exe PID 4452 created 3744 4452 svchost.exe csrss.exe PID 4452 created 3744 4452 svchost.exe csrss.exe -
Executes dropped EXE 2 IoCs
Processes:
csrss.exeinjector.exepid process 3744 csrss.exe 2136 injector.exe -
Modifies Windows Firewall 1 TTPs 1 IoCs
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Adds Run key to start application 2 TTPs 2 IoCs
Processes:
242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Drops file in Windows directory 2 IoCs
Processes:
242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exedescription ioc process File opened for modification C:\Windows\rss 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe File created C:\Windows\rss\csrss.exe 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Modifies data under HKEY_USERS 64 IoCs
Processes:
242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time" 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exeinjector.execsrss.exepid process 4724 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe 4724 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe 1704 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe 1704 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe 1704 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe 1704 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe 1704 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe 1704 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe 1704 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe 1704 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe 1704 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe 1704 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 3744 csrss.exe 3744 csrss.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 3744 csrss.exe 3744 csrss.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe 2136 injector.exe -
Suspicious use of AdjustPrivilegeToken 17 IoCs
Processes:
242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exesvchost.execsrss.exedescription pid process Token: SeDebugPrivilege 4724 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Token: SeImpersonatePrivilege 4724 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe Token: SeTcbPrivilege 4452 svchost.exe Token: SeTcbPrivilege 4452 svchost.exe Token: SeBackupPrivilege 4452 svchost.exe Token: SeRestorePrivilege 4452 svchost.exe Token: SeBackupPrivilege 4452 svchost.exe Token: SeRestorePrivilege 4452 svchost.exe Token: SeBackupPrivilege 4452 svchost.exe Token: SeRestorePrivilege 4452 svchost.exe Token: SeBackupPrivilege 4452 svchost.exe Token: SeRestorePrivilege 4452 svchost.exe Token: SeSystemEnvironmentPrivilege 3744 csrss.exe Token: SeBackupPrivilege 4452 svchost.exe Token: SeRestorePrivilege 4452 svchost.exe Token: SeBackupPrivilege 4452 svchost.exe Token: SeRestorePrivilege 4452 svchost.exe -
Suspicious use of WriteProcessMemory 18 IoCs
Processes:
svchost.exe242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.execmd.execsrss.exedescription pid process target process PID 4452 wrote to memory of 1704 4452 svchost.exe 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe PID 4452 wrote to memory of 1704 4452 svchost.exe 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe PID 4452 wrote to memory of 1704 4452 svchost.exe 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe PID 1704 wrote to memory of 3524 1704 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe cmd.exe PID 1704 wrote to memory of 3524 1704 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe cmd.exe PID 3524 wrote to memory of 216 3524 cmd.exe netsh.exe PID 3524 wrote to memory of 216 3524 cmd.exe netsh.exe PID 1704 wrote to memory of 3744 1704 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe csrss.exe PID 1704 wrote to memory of 3744 1704 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe csrss.exe PID 1704 wrote to memory of 3744 1704 242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe csrss.exe PID 4452 wrote to memory of 4280 4452 svchost.exe schtasks.exe PID 4452 wrote to memory of 4280 4452 svchost.exe schtasks.exe PID 4452 wrote to memory of 3448 4452 svchost.exe schtasks.exe PID 4452 wrote to memory of 3448 4452 svchost.exe schtasks.exe PID 3744 wrote to memory of 2136 3744 csrss.exe injector.exe PID 3744 wrote to memory of 2136 3744 csrss.exe injector.exe PID 4452 wrote to memory of 928 4452 svchost.exe schtasks.exe PID 4452 wrote to memory of 928 4452 svchost.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe"C:\Users\Admin\AppData\Local\Temp\242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe"C:\Users\Admin\AppData\Local\Temp\242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6.exe"2⤵
- Adds Run key to start application
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.exeC:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\netsh.exenetsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes4⤵
- Modifies Windows Firewall
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeC:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s seclogon1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeFilesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeFilesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\rss\csrss.exeFilesize
4.1MB
MD53ec06461bc2ac71dab2701ade11fc725
SHA11605219848e21a17b48d9891cb26e260d63389d6
SHA256242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6
SHA5125ef4d8633033001679ad7770bddd43100172e32f6324fe143d457ae4c5abfe9bc4ac0b9d553d79aa592ffddf3458665167af05e1c19fde2cc83251495253c99f
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C:\Windows\rss\csrss.exeFilesize
4.1MB
MD53ec06461bc2ac71dab2701ade11fc725
SHA11605219848e21a17b48d9891cb26e260d63389d6
SHA256242df16f7569887eae8bbe57edfd98caeac90f1ad052dca7c979113108e4f2d6
SHA5125ef4d8633033001679ad7770bddd43100172e32f6324fe143d457ae4c5abfe9bc4ac0b9d553d79aa592ffddf3458665167af05e1c19fde2cc83251495253c99f
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memory/216-140-0x0000000000000000-mapping.dmp
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memory/928-152-0x0000000000000000-mapping.dmp
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memory/1704-135-0x0000000000000000-mapping.dmp
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memory/1704-138-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/1704-137-0x0000000002AC6000-0x0000000002EAF000-memory.dmpFilesize
3.9MB
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memory/1704-144-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/2136-149-0x0000000000000000-mapping.dmp
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memory/3448-148-0x0000000000000000-mapping.dmp
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memory/3524-139-0x0000000000000000-mapping.dmp
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memory/3744-141-0x0000000000000000-mapping.dmp
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memory/3744-146-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/3744-145-0x0000000002E00000-0x00000000031E9000-memory.dmpFilesize
3.9MB
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memory/3744-153-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/4280-147-0x0000000000000000-mapping.dmp
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memory/4724-132-0x0000000002A15000-0x0000000002DFE000-memory.dmpFilesize
3.9MB
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memory/4724-136-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/4724-134-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/4724-133-0x0000000002E00000-0x0000000003677000-memory.dmpFilesize
8.5MB